AERMEC SAF - Maintenance; Preliminary Warnings; Routine Maintenance; Troubleshooting

SAF_5523451_09
22
MAINTENANCE
PRELIMINARY WARNINGS
All routine and extraordinary maintenance operations must be
carried out by qualied sta.
Before carrying out any work on the unit, be sure to disconnect
the power supply.
ROUTINE MAINTENANCE
Periodic maintenance is fundamental to keep the unit perfectly
ecient under a functional and energetic point of view.
A maintenance plan with yearly frequency is recommended,
stipulating the following operations and checks:
– The presence of air bubbles.
– Safety device eciency.
– Power supply voltage.
– Electrical absorption.
– Tightening of electrical and hydraulic connections.
– Circulation pump eciency.
TROUBLESHOOTING
Anomaly Cause Solution U/I/A
The product will not start
No voltage Check the presence of voltage I
Master switch in OFF position Position to ON U
Control panel at OFF Position to ON U
Power supply voltage low Check power supply line I/A
Circulator failure Replace the component I/A
Insucient performance
Presence of air in the hydraulic system bleed I
Incorrect sizing of the equipment Check I
Operation outside of the operating
conditions recommended by the manu
-
facturer
Verify parameters I
Circulator noisy
Presence of air in the hydraulic system bleed i
Power supply voltage low Check power supply line I
The instant hot domestic water
producer stops because the protec
-
tions trip
Power supply voltage low Check I
Electric connections fastened badly Check I
Operation outside allowed limits Check I/A
Malfunction of probes or ow meter Replace the component I/A
Circuit breaker protection intervention
Check power supply voltage A
Check electric isolation of the circulator
windings
A
Elevated electrical absorption.
Non-compliant power supply voltage Check the power supply voltage I
Operation outside allowed limits Check I